CR2032 are rated 225mAh at 3V, so to reach the performance you've listed they'd have to be drawing at most 14mW. Luminous efficiency for LEDs is very optimistically 100 lm/W so that's giving out at best 1 lumen.
^^^^and for that reason, he's out.
@Jonerfun started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
^^^^and for that reason, he's out.